Charles workheiser



(No Model.) I

C. WORKHEISER. MACHINE POR UUTTING OUT PEARL BUTTON BLANKS.

"U E ST E PATENT. OFFICE.

CHARLES WORKHEISER, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE NEWELL BROTHERS MANUFACTURING COMPANY, OF SAME PLACE.

MACHINE-FOR- CUTTINQ our PE-ARL-BUTTONBLANKS.

SPECIFICATION forming part of Letters Patent No. 508,795, dated November 1 189 3.

' I Application filed June 5, 1893. Serial No. 476.582. (No model.)

To all whom it may concern: v

Be it known that I, CHARLES WORKHEISER, a citizen of the United States, residing at Springfield, in the county of I-Iampden and State of Massachusetts,have invented new and useful Improvements in Machines for Cutting Out Pearl-Button Blanks, of which the following is a specification.

disks or circular blanks from which the buttons are afterward turned. Heretofore in machines for this purpose, so far'as known to me, in which tubular," end-toothed, cutters have been employed, the blanks have been, after being cut from the shell, left just within the working end of the cutter-tube, and they have, before the cutting-out of the next blank, been expelled forwardly by a suitable plunger working-within thetubular cutter; the forcible ejection of the blank forwardly from within the teeth has often resulted in the chipping off of edge portions of the blanks to the injury of the latter, and the principal object of this invention is to devise a cutter for the indicated pnrposeby the use of which the forwardejection of the blanks, intermediate ofthe cutting operations, is unnecessary and by the use of which the chipping off of edgewise'portions of the blanks is avoided.

Another object is to make provision for the wear of the tubular cutter, so that practically the entire length of the cutter tube may be utilized .by regrinding. the invention consists in the construction and combination of parts, all substantially as will hereinafter fully appear and be set forth in the claims;

In the drawings accompanying,-Figure '1 is a sectional elevation of the blank cutting machine. Fig. 2 is a side view of the cuttertube and its holder. Figs. 3 and 4 are perspective views of sections, one or both of which may form the seat with which the cutter-tube has, by its rear end, an engagement. Fig. 5 isaperspective view of the removable, steadying collar which surrounds an intermediate part of the cutter-tube. Fig. 6 is a perspective view of the cutter-tube, while Fig. 7 is a perspective View of a blank as cut out by this machine.

And to these ends.

Y Similar letters of reference indicate corresponding parts in all oftheviews.

- In the drawings, A represents the headstock mounted for rotation and carrying the hollow cylindrical or tubular holder, B; for the tubular cutter, O, the ratchet-like'cutting teeth, a, of which are arranged upon the forward end thereof. The rear end of the holder is solid and has the screw tang, b, which enters a screw-tapped socket therefor in the head-stock. The tubular'holder, B, has therewithin a seat upon which rests,'an l withf, of the rear end of the cutter and the teeth,

f of the seat. I I

In order that the rear end of the cutter-tube (the walls of which tube are comparatively thin) may have sufficient strength to withstand the force for rotation imparted through the toothed seat of the holder to the rear teeth of the tube, aswell as the better to withstand the impact endwise' while the cuttertube is working, the latter is externally enlarged as seen at e. tained within the holder, B, to rotate as one therewith by the set screw, 0, and has, at one side, the aperture, h,while, next thereto, the holder has the aperture, 1'. The opening within the annular seat formingsection or sections, d, LP, is of somewhat greater diameter than the passage through the cutter-tube, as also are the sidewise apertures, h, 2', to insure the free discharge of the blanks.

v The cutter-tube is suppported centrally at the forward end of the holder by the collar, 7', which sets within the deep seat or rabbet, k, in the forward end of the holder, and is retained by the set screw, j

The cutter-tube may be first appliedin the holder with its rear toothed end against the forward end of the seat section, d, it being assumed to be then of sufficient length to protrude suitably forward beyond the end of the holder;but after several regrindings of the cutter teeth whereby the tube becomes The section, (1, is re- 7 measurably shortened, one or more of the extra toothed seat'sections, (1 may be inserted between the rear end of the cutter-tube and the sidewise recessed section, d.

The pearl stock is presented in any suitable or well known manner to the cutting end of the tube, 0, and the blanks, as the work proceeds, are forced rearwardly through the tube and drop out at the discharge opening therefor through the holder, as manifest.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a machine for cutting out blanks for pearl buttons, the combination with the rotatably mounted tubular holder with an annular toothed seat at its rear, and the sidewise discharge opening adjacent thereto, of the tube having the cutter-teeth at its forward end, and having its rear end provided with teeth to engage the toothed seat within the holder, substantially as described.

2. In a machine for cutting out blanks for pearl buttons, the combination with the rotatably mounted tubular holder with a discharge opening at its rear, and having annular sections therein the rearmost one of which is recessed sidewise, and has teeth at its forward end and is detachably secured in the holder, one or more removable annular sections with toothed rear and forward ends, and the tube having the cutter-teeth at its forward end and having teeth at its rear end, substantially as described.

3. In a machine for cutting-out blanks from pearl, the combination with a tubular rotatably mounted holder-having an annular seat therewithin which is formed by two or more annular sections, one or more of which are removable, and the device having a discharge opening for the blanks, the cutter tube having its rear portion within the tubular holder and resting against the said section formed seat and means for preventing the rotation of the cutter-tube relative to the holder, substantially as described.

4. In a machine for cutting out blanks from pearl, the combination with the rotatable head-stock, the tubular holder, B, secured 

